<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>案例-头像上传</title>
  <link rel="stylesheet" href="./lib/bootstrap-v4.6.0.css">
  <style>
    .thumb-box {
      text-align: center;
      margin-top: 50px;
    }

    .thumb {
      width: 250px;
      height: 250px;
      object-fit: cover;
      border-radius: 50%;
    }
  </style>
</head>

<body>
  <div class="thumb-box">
    <!-- 头像 -->
    <img src="./images/cover.jpg" class="img-thumbnail thumb" alt="">
    <div class="mt-2">
      <!-- 文件选择框 -->
      <!-- accept 属性表示可选择的文件类型 -->
      <!-- image/* 表示只允许选择图片类型的文件 -->
      <input type="file" id="iptFile" accept="image/*" style="display: none;">
      <!-- 选择头像图片的按钮 -->
      <button class="btn btn-primary" id="btnChoose">选择 & 上传图片</button>
    </div>
  </div>

  <script src="./lib/common.js"></script>
  <script src="./lib/axios.js"></script>

  <script>
   function qs(ele){
    return document.querySelector(ele)
   }
   qs()
   qs('#btnChoose').addEventListener('click',function(){
    qs('#iptFile').click()
   })
   qs('#iptFile').addEventListener('change', async function(){
    const file = this.files[0]
    console.log(file);
    if(!file){
      return
    }
    const fd = new FormData()
    fd.append('avatar',file)
    
    axios.defaults.baseURL = 'http://ajax-api.itheima.net'
   const res = await axios.post('/api/file',fd)
   console.log(res);
   qs('.thumb').src = res.data.data.url
   })
  </script>
</body>

</html>